A. Decreases
B. Remains unchanged
C. Increases
D. May increase or decrease; unpredictable
Related Mcqs:
- The presence of impurities in iron_________________?
A. Increases its melting point
B. Does not affect its melting point
C. Decreases its melting point
D. Makes it malleable - Which of the following is a low melting point metal ?
A. Stainless steel
B. Wrought iron
C. Tin
D. Copper - Which has the maximum melting point out of the following ?
A. Steel
B. Cast iron
C. Stainless steel
D. Wrought iron - Which of the following has the highest density and the lowest melting point ?
A. Stainless steel
B. Titanium
C. Lead
D. Aluminium - Tank furnace used for melting of glass is made of___________________?
A. Mild steel
B. Cast iron
C. Refractory blocks
D. Stainless steel - Sulphur melting pit in the sulphuric acid plant is made of__________________?
A. Lead lined stainless steel
B. Cast iron
C. Steel or cement-brick lined
D. Hard wood - Spark plugs are made of______________________?
A. High alumina ceramic
B. Metallic carbides
C. Corundum
D. Carborundum - Mixing vessel used for the chlorination of methane to produce methyl chloride is made of___________________?
A. Copper
B. Cast iron
C. Aluminium
D. High carbon steel - Glass is corroded by________________?
A. Fluorine (dry or wet)
B. Sulphuric acid
C. Phosphoric acid
D. None of these - Very high sulphur in pig iron makes ___________________?
A. Its casting unsound
B. Its hard and machinable
C. Its brittle and malleable
D. All A., B. & C.
